Search

Ching Chang

Examiner (ID: 5925, Phone: (571)272-4857 , Office: P/3748 )

Most Active Art Unit
3748
Art Unit(s)
3746, 3748
Total Applications
1871
Issued Applications
1700
Pending Applications
11
Abandoned Applications
170

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 109856 [patent_doc_number] => 07712440 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-05-11 [patent_title] => 'Increased HCCI operation window' [patent_app_type] => utility [patent_app_number] => 11/938706 [patent_app_country] => US [patent_app_date] => 2007-11-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 4112 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 171 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/712/07712440.pdf [firstpage_image] =>[orig_patent_app_number] => 11938706 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/938706
Increased HCCI operation window Nov 11, 2007 Issued
Array ( [id] => 4819370 [patent_doc_number] => 20080121197 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-05-29 [patent_title] => 'Variable mechanical valve control for an internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/983780 [patent_app_country] => US [patent_app_date] => 2007-11-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 7857 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0121/20080121197.pdf [firstpage_image] =>[orig_patent_app_number] => 11983780 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/983780
Variable mechanical valve control for an internal combustion engine Nov 8, 2007 Issued
Array ( [id] => 6245521 [patent_doc_number] => 20100024752 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-02-04 [patent_title] => 'DEVICE FOR THE HYDRAULIC CONTROL OF GAS EXCHANGE VALVES OF A RECIPROCATING INTERNAL COMBUSTION ENGINE' [patent_app_type] => utility [patent_app_number] => 12/518966 [patent_app_country] => US [patent_app_date] => 2007-11-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 3273 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0024/20100024752.pdf [firstpage_image] =>[orig_patent_app_number] => 12518966 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/518966
Device for the hydraulic control of gas exchange valves of a reciprocating internal combustion engine Nov 6, 2007 Issued
Array ( [id] => 4962406 [patent_doc_number] => 20080105226 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-05-08 [patent_title] => 'Gas exchange valve actuating apparatus' [patent_app_type] => utility [patent_app_number] => 11/982739 [patent_app_country] => US [patent_app_date] => 2007-11-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2509 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0105/20080105226.pdf [firstpage_image] =>[orig_patent_app_number] => 11982739 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/982739
Gas exchange valve actuating apparatus Nov 1, 2007 Issued
Array ( [id] => 4556557 [patent_doc_number] => 07827946 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-11-09 [patent_title] => 'Engine valve lifter mechanism of internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/979225 [patent_app_country] => US [patent_app_date] => 2007-10-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 11 [patent_no_of_words] => 7653 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 193 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/827/07827946.pdf [firstpage_image] =>[orig_patent_app_number] => 11979225 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/979225
Engine valve lifter mechanism of internal combustion engine Oct 30, 2007 Issued
Array ( [id] => 4889875 [patent_doc_number] => 20080098970 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-05-01 [patent_title] => 'Valve unit of internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/978576 [patent_app_country] => US [patent_app_date] => 2007-10-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 8172 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0098/20080098970.pdf [firstpage_image] =>[orig_patent_app_number] => 11978576 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/978576
Valve unit of internal combustion engine Oct 29, 2007 Issued
Array ( [id] => 4537971 [patent_doc_number] => 07819096 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-10-26 [patent_title] => 'Cylinder valve operating system for reciprocating internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/927727 [patent_app_country] => US [patent_app_date] => 2007-10-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 2392 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 229 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/819/07819096.pdf [firstpage_image] =>[orig_patent_app_number] => 11927727 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/927727
Cylinder valve operating system for reciprocating internal combustion engine Oct 29, 2007 Issued
Array ( [id] => 5326957 [patent_doc_number] => 20090107434 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-04-30 [patent_title] => 'Systems And Methods For Managing Camshaft Torsional Loading' [patent_app_type] => utility [patent_app_number] => 11/924569 [patent_app_country] => US [patent_app_date] => 2007-10-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 4515 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0107/20090107434.pdf [firstpage_image] =>[orig_patent_app_number] => 11924569 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/924569
Systems and methods for managing camshaft torsional loading Oct 24, 2007 Issued
Array ( [id] => 5394174 [patent_doc_number] => 20090314236 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-12-24 [patent_title] => 'LIFT TRANSMITTING COMPONENT AND METHOD OF MANUFACTURING SUCH A COMPONENT' [patent_app_type] => utility [patent_app_number] => 12/312276 [patent_app_country] => US [patent_app_date] => 2007-10-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3410 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0314/20090314236.pdf [firstpage_image] =>[orig_patent_app_number] => 12312276 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/312276
Lift transmitting component and method of manufacturing such a component Oct 23, 2007 Issued
Array ( [id] => 4781789 [patent_doc_number] => 20080135118 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-06-12 [patent_title] => 'Spool Valve for VCT Locking Pin Release Mechanism' [patent_app_type] => utility [patent_app_number] => 11/877847 [patent_app_country] => US [patent_app_date] => 2007-10-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 2627 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0135/20080135118.pdf [firstpage_image] =>[orig_patent_app_number] => 11877847 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/877847
Spool valve for VCT locking pin release mechanism Oct 23, 2007 Issued
Array ( [id] => 6425174 [patent_doc_number] => 20100186693 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-07-29 [patent_title] => 'INTERNAL COMBUSTION ENGINE VALVE MECHANISM' [patent_app_type] => utility [patent_app_number] => 12/376788 [patent_app_country] => US [patent_app_date] => 2007-10-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 11399 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0186/20100186693.pdf [firstpage_image] =>[orig_patent_app_number] => 12376788 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/376788
Internal combustion engine valve mechanism Oct 17, 2007 Issued
Array ( [id] => 4742642 [patent_doc_number] => 20080087243 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-04-17 [patent_title] => 'Methods for controlling valves of an internal combustion engine, devices for controlling the valves, and engines employing the methods' [patent_app_type] => utility [patent_app_number] => 11/974236 [patent_app_country] => US [patent_app_date] => 2007-10-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2594 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0087/20080087243.pdf [firstpage_image] =>[orig_patent_app_number] => 11974236 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/974236
Methods for controlling valves of an internal combustion engine, devices for controlling the valves, and engines employing the methods Oct 11, 2007 Issued
Array ( [id] => 4901014 [patent_doc_number] => 20080110426 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-05-15 [patent_title] => 'MOUNTING MODULE OF OIL CONTROL VALVE FOR TAPPET CONTROL IN CYLINDER DEACTIVATION ENGINE' [patent_app_type] => utility [patent_app_number] => 11/869531 [patent_app_country] => US [patent_app_date] => 2007-10-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4594 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0110/20080110426.pdf [firstpage_image] =>[orig_patent_app_number] => 11869531 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/869531
Mounting module of oil control valve for tappet control in cylinder deactivation engine Oct 8, 2007 Issued
Array ( [id] => 208071 [patent_doc_number] => 07624710 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-12-01 [patent_title] => 'Valve timing controller' [patent_app_type] => utility [patent_app_number] => 11/905848 [patent_app_country] => US [patent_app_date] => 2007-10-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3731 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 191 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/624/07624710.pdf [firstpage_image] =>[orig_patent_app_number] => 11905848 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/905848
Valve timing controller Oct 3, 2007 Issued
Array ( [id] => 4690617 [patent_doc_number] => 20080083387 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-04-10 [patent_title] => 'Valve timing controller' [patent_app_type] => utility [patent_app_number] => 11/905847 [patent_app_country] => US [patent_app_date] => 2007-10-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 4082 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0083/20080083387.pdf [firstpage_image] =>[orig_patent_app_number] => 11905847 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/905847
Valve timing controller Oct 3, 2007 Issued
Array ( [id] => 4941021 [patent_doc_number] => 20080078342 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-04-03 [patent_title] => 'Multi-cylinder internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/905099 [patent_app_country] => US [patent_app_date] => 2007-09-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 5503 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0078/20080078342.pdf [firstpage_image] =>[orig_patent_app_number] => 11905099 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/905099
Multi-cylinder internal combustion engine Sep 26, 2007 Issued
Array ( [id] => 4654092 [patent_doc_number] => 20080022952 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-01-31 [patent_title] => 'Valve timing control apparatus and its assembling method' [patent_app_type] => utility [patent_app_number] => 11/902737 [patent_app_country] => US [patent_app_date] => 2007-09-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 6593 [patent_no_of_claims] => 27 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0022/20080022952.pdf [firstpage_image] =>[orig_patent_app_number] => 11902737 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/902737
Valve timing control apparatus and its assembling method Sep 24, 2007 Abandoned
Array ( [id] => 4729746 [patent_doc_number] => 20080047509 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-02-28 [patent_title] => 'Method and apparatus for optimized combustion in an internal combustion engine utilizing homogeneous charge compression ignition and variable valve actuation' [patent_app_type] => utility [patent_app_number] => 11/903729 [patent_app_country] => US [patent_app_date] => 2007-09-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 20 [patent_figures_cnt] => 20 [patent_no_of_words] => 6295 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0047/20080047509.pdf [firstpage_image] =>[orig_patent_app_number] => 11903729 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/903729
Method and apparatus for optimized combustion in an internal combustion engine utilizing homogeneous charge compression ignition and variable valve actuation Sep 23, 2007 Abandoned
Array ( [id] => 4936294 [patent_doc_number] => 20080073608 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-03-27 [patent_title] => 'Hydraulic valve play compensating element' [patent_app_type] => utility [patent_app_number] => 11/903368 [patent_app_country] => US [patent_app_date] => 2007-09-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 5783 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0073/20080073608.pdf [firstpage_image] =>[orig_patent_app_number] => 11903368 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/903368
Hydraulic valve play compensating element Sep 20, 2007 Issued
Array ( [id] => 4935540 [patent_doc_number] => 20080072854 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-03-27 [patent_title] => 'Variable valve lift internal combustion engine' [patent_app_type] => utility [patent_app_number] => 11/902406 [patent_app_country] => US [patent_app_date] => 2007-09-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 5679 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0072/20080072854.pdf [firstpage_image] =>[orig_patent_app_number] => 11902406 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/902406
Variable valve lift internal combustion engine Sep 20, 2007 Issued
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